12. The          conduct of the business
 
Subject          to contract between the partners,—
    
        
            | (a) |  | every                  partner has a right to take part in the conduct of the business; | 
        
            | (b) |  | every                  partner is bound to attend diligently to his duties in the                  conduct of the business; | 
        
            | (c) |  | any                  difference arising as to ordinary matters connected with the                  business may be decided by a majority of the partners, and every                  partner shall have the right to express his opinion, before the                  matter is decided, but no change may be made in the nature of                  the business without the consent of all the partners; and | 
        
            | (d) |  | every                  partner has a right to have access to and to inspect and copy                  any of the books of the firm. |